Have you ever wondered what these strange black and white squared graphics mean? You’ve probably seen them around a lot lately, but do you really know what they’re used for, or how can you read them? No worries: OnSoftware comes to the rescue! In this post I’ll try to explain everything you need to know about QR codes. Yes, these strange symbols are called QR codes (Quick Response codes). They’re an evolution of the classic barcode, a standard sign that enables you to represent more than 4,000 alphanumeric characters in a bi-dimensional graphic (don’t worry about that!). QR codes were initially used in the automotive industry to keep track of stocks, but nowadays their usage has spread everywhere as a handy way to share information: IT companies, software developers, advertising agencies and media, they’ve all used QR codes at some point. In order to read QR codes, you need a camera-equipped device and a compatible reader. These requisites were a real handicap a few years ago, but now that most of us have a smartphone with camera in our pocket, we’re now ready to scan QR codes anywhere.(Via OnSoftware ES)